One big problem with Taker/Lesnar is that all of their history took place during Taker's ABA/Big Evil gimmick, which WWE has been shy about showing footage of that version of his character in recent years. And they sure as hell couldn't show their staredown at that UFC event a few years ago, as that absolutely destroys kayfabe lol. Then again, WWE could just pretend that they never faced each other, as they seem to be good at doing stuff like that.